224 AGRICULTURAL EXPERIMENT STATION. 



white at the base, segment seven narrowly banded both basahy 

 and apically, tending to join at the lateral borders, the apical 

 segment and genitalia black. On some specimens the bands break 

 into the black irregularly. Beneath, the abdomen is yellowish. 



Habits of the Adult. 



This species was originally described from California and was 

 first taken in New Jersey by Mr. Henry L. Viereck, May 8, 1903, 

 at Westville, with a lot of canadensis, which were then flying. 

 Later in the season it was taken in a low, swampy woodland near 

 New Brunswick, by Mr. Clarence Van Duersen, June 28, July 

 16 and July 28. In 1904 Mr. John H. Voorhees took examples 

 in the same woods during the latter part of June and until after 

 the middle of July. They were always associated with canaden- 

 sis, had approximately the same habits of flight and bit readily. 

 They were not found to be especially vicious, however, and their 

 bite was not more severe than that of the other species. No 

 specimens have ever been taken outside of the woods and they 

 are so rare there, that they cannot be regarded as in any way 

 troublesome. Larvae have been taken near Paterson by Mr. 

 Grossbeck; hence it is perhaps a fair conclusion that the species 

 occurs in favorable localities throughout at least the northern 

 half of the State. The period of flight is long, and as we have 

 no indication that there is more than one brood, the period of 

 flieht indicates an individual life of about three months. 



Description of the Larva. 



The larva is illustrated on plate figure 66, with details of 

 structure. The full grown wriggler (fig. 66, i) measures 12-14 

 mm., = .48-56 of an inch in length excluding the anal siphon, 

 is dirty gray in color, excepting the head and siphon and, in 

 general build, resembles Cidex canadensis. The head is almost 

 as broad as long, widest just below the eyes, tapering without 

 curve to beyond the base of the antenna, flattened in front, light 

 brown in color and with four small black spots near the base of 

 the vertex. On the anterior part of the vertex are four single 

 hairs, each arising from separate pits ; the pits so placed as to 

 form a square, slightly narrower in front ; directly opposite the 

 posterior hair, at the base of each antenna, is a small tuft of four 

 or five hairs. The antenna is rather short, curved, uniformly 

 brown in color, the surface sparsely set with short, stout spines 



